Kenhsuite Mineral Data

General Kenhsuite Information

Chemical Formula:

Hg3S2Cl2

Composition:

Molecular Weight = 736.81 gm

Mercury 81.67 % Hg 88.19 % HgO

Sulfur 8.70 % S 8.70 % S^2-

- % S -4.34 % -O=S

Chlorine 9.62 % Cl 9.62 % Cl

- % Cl -2.17 % -O=Cl₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Hg₃S₂Cl₂

Environment:

In hydrothermally altered rhyolitic, tuffaceous rocks. An orthorhombic polymorph of corderoite.

IMA Status:

Approved IMA 1998 (Dana # Added)

Locality:

The McDermitt open pit mercury mine, about 10 km southwest of the town of McDermitt, Humboldt County, Nevada, USA. Link to MinDat.org Location Data.

Name Origin:

For Dr. Kenneth Junghwa Hsu (1929-), Professor Emeritus, Swiss Federal Institute of Technonogy, Zurich, Switzerland.

Name Pronunciation:

Kenhsuite + Pronunciation

Synonym:

ICSD 29253

IMA1996-026

PDF 20-738

Kenhsuite Image

Images:

Kenhsuite

Comments: Yellow crystalline kenhsuite on montmorillonite matrix (light sensitive).
Location: McDermitt Mine, Humboldt County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kenhsuite Crystallography

Axial Ratios:

a:b:c =0.5548:1:0.5414

Cell Dimensions:

a = 9.332, b = 16.82, c = 9.108, Z = 8; V = 1,429.63 Den(Calc)= 6.85

Crystal System:

Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: A2mm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.58(1), 3.65(0.9), 3.11(0.51),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
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Durovic S , Acta Crystallographica, Section B , 24 (1968) p.1661-1670, The crystal structure of gamma-Hg3S2Cl2, Sample: superposition structure

Physical Properties of Kenhsuite

Color:

Canary yellow.

Density:

6.76

Diaphaneity:

Transparent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

2-3 - Gypsum-Calcite

Luster:

Vitreous (Glassy)

Streak:

canary yellow

Optical Properties of Kenhsuite

Optical Data:

Biaxial (+), b=2.25, g=2.25, , 2V(Meas)=70-80. Dispersion r > v extreme.

Calculated Properties of Kenhsuite

Electron Density:

Bulk Density (Electron Density)=5.69 gm/cc
note: Specific Gravity of Kenhsuite =6.85 gm/cc.

Fermion Index:

Fermion Index = 0.24
Boson Index = 0.76

Photoelectric:

PE_Kenhsuite=1,393.04 barns/electron
U=PE_Kenhsuite x rElectron Density=7,925.95 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kenhsuite is Not Radioactive

Kenhsuite Classification

Dana Class:

10.03.03.02 (10)Oxyhalides and Hydroxyhalides

(10.03)where (A)3 (O,OH)2 Xq

(10.03.03)Dana Group

10.03.03.01 Corderoite Hg3S2Cl2 I 2₁3 2 3

10.03.03.02 Kenhsuite! Hg3S2Cl2 A2mm mm2

Strunz Class:

02.FC.15b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O

02.FC -With Cl, Br, I (halide-sulfides)

02.FC.15b Kenhsuite! Hg3S2Cl2 A2mm mm2

Other Kenhsuite Information

References:

NAME( MinRec) PHYS. PROP.(Min.Mag.,Vol.61,p733,1997) OPTIC PROP.(Min.Mag.,Vol.61,p733,1997)

See Also:

Links to other databases for Kenhsuite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Print or Cut-and-Paste your Kenhsuite Specimen Label here :

Kenhsuite

Hg3S2Cl2
Dana No: 10.03.03.02 Strunz No: 02.FC.15b
Locality:

Notes: